09/2021
Page 3
User Manual
a-TroniX Relay card 1–3 kVA
1. Function
The relay card belongs to the intelligent optional expansion cards and is used for direct
and potential-free coupling with external controls and/or machines.
This allows the UPS status to be transmitted in real time to higher-level controls.
2. Definition
Pins definition of connecting terminal on the board:
Terminal No.
Terminal function
1
Common source
2
UPS on NO
3
AC fail NO
4
AC fail NC
5
Batt low NO
6
Batt low NC
7
UPS alarm NO
8
UPS alarm NC
9
Bypass active NO
10
Bypass active NC
11
UPS fail NO
12
UPS fail NC
CN4-1
Remote shutdown
CN4-2 GND
For function definition of connecting terminal you can also get relevant information from the
imprint on the rear of the card.
3. Product
appearance
a-TroniX Relay Card for
real-time monitoring of the UPS.
